baber/WOPTO huggingface dataset:
Patent GB-1206115-A (GB)
Title: Improvements in or relating to coat hangers
Inventor: YIU DAK CHI
IPC: A47G25/48
Filed: 1966-11-04
Abstract: 1,206,115. Garment hangers. FORDA MFG. CO. Ltd. 13 Oct., 1967 [4 Nov., 1966], No. 49641/66. Heading A4U. A garment hanger comprises a crossbar 10 having a suspensory hook 13 and formed as a concave plastic shell, cross bars 11, 12 also formed as concave plastic sheets and having apertured ends slidable on parts 18 of a wire loop 17 secured at its ends, to the cross bar 10, and compression springs 22 which urge the bar 11 to clamp trousers laid over the bar 12. The loop 17 extends within the bar 12 on a reinforcement and the upper ends of the parts 18 are hooked into stiffening webs in the cross bar 10 which also forms abutments for the upper ends of the spring 22.
Patent GB-1503995-A (GB)
Title: Piledriving ram
IPC: E02D7/12
Filed: 1975-12-05
Abstract: 1503995 Pile-drivers VAN KOOTEN BV 5 Dec 1975 [10 Dec 1974] 49933/75 Heading B3H A pile-driver (27), Fig. 1 (not shown), comprises a combustion cylinder 3, a striker 2 extending into the combustion cylinder, a piston 1 located in the combustion cylinder and a fuel injector 6 which supplies fuel at at least two spaced locations between the impact surfaces 4, 5 of the striker and piston. The fuel injector 6 comprises one pump with a nozzle 30 which sprays fuel to three zones (3), Fig. 4 (not shown), on the impact surface 4. Alternatively the injector may be provided with diametrically opposed pairs of nozzles (30a), (30b), Fig. 5 (not shown), which are fed by pumps (7a), (7b), the former supplying Diesel oil, while the latter supplies a substance, e.g. petrol or benzene, which affects the combustion velocity. This is varied according to the hardness of the ground into which a pile (21), Fig. 1 is driven.
Patent GB-1061020-A (GB)
Title: Preparation of carboxylic acids
IPC: C07C51/14
Filed: 1963-12-18
Abstract: Aliphatic and cycloaliphatic carboxylic acids are prepared by reacting olefines with carbon monoxide in the presence of hydrated boron fluoride as a catalyst, to form a complex which is hydrolysed with at least one mole of water per mole of olefine in the complex, in a plurality of stages at below 150 DEG  F. Preferably, at least three discrete stages are used for the hydrolysis step, in the first of which the complex is hydrolysed with aqueous hydrolysis medium to a mixture of crude carboxylic acid product and dilute boron catalyst (water/BF3 mole ratio of less than 3: 1); in one or more intermediate stages the mixture of crude acid and boron catalyst is diluted with a medium having a water/BF3 mole ratio greater than 15 to 1; and in the final stage or stages the crude acid is washed with the BF3 containing aqueous medium and a water/BF3 mole ratio of greater than 15 to 1 is maintained.  Propylene, butylene, pentene, cyclopentene, and cyclohexene and higher homologues and isomers thereof, are mentioned.  The hydrolysis steps may be in a plurality of continuous countercurrent mixing-settling zones and suitable apparatus is described.  Examples describe the treatment of a propylene trimer (C9 olefine) to form a C10 acid.
Patent GB-1125328-A (GB)
Title: Heat treatment of austenitic stainless steels
IPC: F16L5/00
Filed: 1966-11-09
Abstract: 1,125,328. Heat-treating stainless steel. GENERAL ELECTRIC CO. Nov. 9, 1966 [Nov. 30, 1965|, No.50194/66. Heading C7A. Austenitic stainless steels are heated in a vacuum or inert atmosphere to a temperature above 1050‹ C, but preferably not exceeding 1300‹ C, for 2 to 10 hours, and are then cooled rapidly to room temperature, as by water quenching. The steels are then reheated to 800‹ - 900‹ C for not less than 1 hour, preferably for several hours, again in a vacuum or an inert atmosphere, after which they are cooled rapidly to room temperature. Corrosion resistance of the steels below 500‹ C is claimed to be improved by the treatment, which produces a microstructure of discrete chromium carbide particles at the grain boundaries.
Patent GB-1071680-A (GB)
Title: Improvements relating to ships' steering arrangements
IPC: B63H25/38
Filed: 1963-12-19
Abstract: 1,071,680. Rudders; sterns. CENTRALNE BIURO KONSTRUKCJI OKRETOWYCH NR. I. Dec. 19, 1963 [Dec. 20, 1962], Headings B7A and B7V. A ship's steering arrangement comprises a rudder blade (1) and at least one additional surface defined by a plate-like member (2 or 3) which is spaced from the ship's hull (5, e.g. by a vertical plate 4), the additional surface being disposed closely adjacent the lower or upper end of the rudder blade, or secured to the lower or upper end of the rudder blade for movement with the blade, the additional surface having a maximum chord at least equal to the chord of the rudder blade at said end, the span of the additional surface extending on both sides of and substantially at right-angles to the plane of symmetry of the blade. The additional surface may be secured to the hull and so remains stationary when the rudder is moved. The surface may be horizontal or inclined.
Patent GB-1526380-A (GB)
Title: Elastic bulk wave frequency filter
IPC: H03H9/46
Filed: 1976-12-02
Abstract: 1526380 Bulk wave filter THOMSON-CSF 2 Dec 1976 [5 Dec 1975] 50377/76 Heading H3U A bulk wave filter comprises an input transducer 20 on a first surface 12 of an elastic body 10, e.g. of lithium niobate, quartz, crystallized alumina or corundum, the transducer directing waves at a second surface 11 having a grating 1 of parallel obstacles which diffract substantially all of the incident energy, one of the diffracted beams being received by an output transducer 40 on a third surface 13 parallel to the wave plane of the beam. The obstacles may be constituted by rectangular grooves with a depth of #/4 so that there is substantially no specular reflection; alternatively the grating may be formed by parallel ribs of deposited material, e.g. chromium, with a similar acoustic impedance to body 10. When the material of body 10 is anisotropic, the output transducer is oblique relative to the propagation path of the diffracted beam (Fig. 4, not shown). A load 30 absorbs unwanted waves. The filter may be used as a delay line in connection with an amplifier (200, Fig. 5, not shown) to form an oscillator.
Patent GB-1372999-A (GB)
Title: Electrostatic copying machine
IPC: G03G15/08
Filed: 1972-11-02
Abstract: 1372999 Developing apparatus INTERNATIONAL BUSINESS MACHINES CORP 2 Nov 1972 [17 Dec 1971] 50457/72 Heading G2H  In an electro-photographic apparatus depletion of toner in the toner supply 33 is monitored by measuring the loss of electrical charge from the supply. The developer station 19 is earthed through lead 57 such that as charge is removed from the supply 33 with the removal of toner an equal charge returns to the developer through lead 57. The current in lead 57 is integrated by amplifier 59 and a charge builds up on capacitor 61. When the charge reaches a predetermined level a level detector 63 initiates a timer 65 which provides a gating signal to drive a motor 67 for a pre-set time. Motor 67 rotates a dispenser member 69. In an alternative embodiment the current in lead 57 passes through a resistor and the toner replenishing means includes a direct current motor connected across the resistor so that the angle  through which the motor rotates the dispenser is proportional to the integral of the current flowing in lead 57.
Patent GB-1531038-A (GB)
Title: Combined harvesting and threshing machine
IPC: A01F12/44
Filed: 1976-12-03
Abstract: 1531038 Threshing machines KLOCKNERHUMBOLDT-DEUTZ AG 3 Dec 1976 [6 Dec 1975] 50491/76 Heading A1F In a self-propelled combine harvester 1 equipped with a combustion engine 2, air used to cool the engine directly or passed through the radiator of a water cooling system therefor is led by a receiver 3 and a duct 4 to a drum 5 whence it emerges through a slot nozzle 6 to winnow grain on sieves 7 in a dressing shoe. Air which does not cool the engine or radiator may also be entrained into the receiver 3 via a passage 9 controlled by a throttle 8 according to the temperature of the engine or radiator. The volume of air led along the duct 4 is regulated by a valve 13 over an opening 12 in the receiver.
Patent GB-1110446-A (GB)
Title: Method of and assembly for encapsulating integrated circuit assemblies
Inventor: MCKEOWN PATRICK JOSEPH AUGUSTI
IPC: H01L23/057
Filed: 1964-12-11
Abstract: 1,110,446. Circuit assemblies. STANDARD TELEPHONES & CABLES Ltd. 9 Dec., 1965 [11 Dec., 1964], No. 50521/64. Heading H1R. A circuit assembly, comprising components 6 having uniplanar electrodes which are soldered to metallized areas 12 on a ceramic plate 4, is encapsulated by an arrangement consisting of a cover-plate 1 and a metal rim 3 joined together by glass 8 having leads 2 passing therethrough; the rim 3 is soldered to a metallic border 9 on plate 4, and terminal areas of leads 2 are soldered to contact portions of metallized areas 12, in a single furnacing operation. The leads 2 are formed as inwardlydirected digits on a rectangular frame (Fig. 1, not shown), the frame being cropped off after assembly. Preferably, cover-plate 1, leads 2, and rim 3 are made of " Kovar " (Registered Trade Mark), although cover-plate 1 need not necessarily be metallic.
Patent GB-1499448-A (GB)
Title: Oxydiacetaldehyde compositions and process
IPC: A01N35/02
Filed: 1975-12-10
Abstract: 1499448 Disinfectant composition ARBROOK INC 10 Dec 1975 [11 Dec 1974] 50608/75 Heading ASE A disinfectant composition comprises an aqueous solution of oxydiacetaldehyde OHC . CH 2  . O . CH 2  . CHO as the active ingredient and one or more of the following: isopropanol, propylene glycol, alkali metal carboxylate alkalinating agent, alkali metal carboxylate and alcohol, a surfactant, an additional antimicrobial agent, a colourant, a corrosion inhibitor, an aldehyde stabiliser, an odourant and an aerosol propellant. The preferred pH of the solution is 7-9.
Patent GB-1399539-A (GB)
Title: Tricyclic ureas processes for preparing them and pharma ceutical compositions containing them
IPC: C07D223/24
Filed: 1972-11-03
Abstract: 1399539 Dibenzazepine and phenothiazine derivatives SCIENCE UNION ET CIE SOC FRANCAISE DE RECHERCHE MEDICALE 5 Nov 1973 [3 Nov 1972] 50697/72 Heading C2C Novel compounds of Formula I in which A is -S-, -CH 2 -CH 2 - or -CH=CH-, each of R and R 1  is H, halogen, CF 3 , OCF 3 , C 1-6  alkoxy or C 1-6  alkylthio, R 4  is H, C 1-6  alkyl or substituted C 1-6  alkyl, R 2  is H, C 1-6  alkyl, substituted C 1-6  alkyl, C 2-10  alkenyl, C 2-6  alkynyl, phenyl-C 1-6  alkyl or (substituted phenyl)-C 1-6  alkyl, R 3  is C 1-6  alkyl, substituted C 1-6  alkyl, C 2-10  alkenyl, C 2-6  alkynyl phenyl- C 1-6  alkyl or (substituted phenyl)-C 1-6  alkyl or -NR 2 R 3  represents a 3- to 7-membered heterocyclic ring, and acid addition salts thereof, are prepared by reaeting a compound of Formula II in which X is Cl, Br or I or a group of formula -OCOR 5 , where R 5  is an alkoxy or alkyl radical or a radical of the Formula III with a compound of formula The compounds I in which R 2  is H may also be prepared by debenzylation of compounds I in which R 2  is benzyl or substituted benzyl. 5 - Ethoxycarbonyl - 3,7 - dichloro - 10,11 - dihydro - 5H - dibenz[b,f]azepine is prepared by reacting 3,7 - dichloro - 10,11 - dihydro - dibenz- [b,f]azepine with ethyl chloroformate. Pharmaceutical compositions having antiarrhythmic activity, for oral, parenteral, sublingual or rectal administration, comprise a compound I or a pharmaceutically acceptable acid addition salt thereof, together with a pharmaceutical carrier.
Patent GB-1434806-A (GB)
Title: Pneumatically operated lift device
IPC: F15B15/10
Filed: 1973-11-01
Abstract: 1434806 Fluid springs J F VAUGHEN 1 Nov 1973 50756/73 Heading F2S [Also in Division F1] An inflatable lifting device, Fig. 1, comprises a diaphragm 8 attached to a base 11 at 9 and to a rigid lifting platform 12 at 10. The diaphragm is of frusto-conical shape so that it offers more resistance to horizontal movement and tilting of the load. Air, steam, gas, water or oil is admitted through a pressure regulating valve 15. A thickened portion 13 supports the platform 12 above the folded diaphragm in the deflated condition. Fig. 2 shows an embodiment with a semi-torroidal diaphragm 18 which is attached to an upper platform 17 by a ring 19. Chambers 22, 23 are inflated through a valve 21 and orifices 24. In the embodiment shown in Fig. 3 chambers 30, 33 are inflated separately through valves 32, 35. In Fig. 4 the chamber 38 is directly inflated through a valve 40 whilst chamber 43 is inflated through a duct with a valve 42 and has bleed holes 45 or 47. As shown in Fig. 5 the upper lifting platform may be omitted if the load has a non-planar base. Figs. 6-9 (not shown), illustrate the use of the embodiments of Figs. 1-4 in the upside-down position. Fig. 11 shows an embodiment with a flexible lifting platform 62 and bleed holes 45, 47, in chamber 43. In Fig. 12 the arrangement is similar to Fig. 11 except that the outer chamber is pressurized and the inner chamber 72 is vented at 74 to atmosphere.
Patent GB-1468650-A (GB)
Title: Automatic loading apparatus for double-spindle face lathes
IPC: B23B3/30
Filed: 1975-12-11
Abstract: 1468650 Workpiece transferring multi-spindle lathe J G WEISSER SOHNE 11 Dec 197S [12 Dec 1974] 50901/75 Headings B3B and B3T A double-spindle face lathe comprises workpiece loading and unloading apparatus including a support frame 20 securable to the centre body 10 and having a vertical guideway 24, a workpiece transfer carriage 26 slidable by way of hydraulic piston and cylinder means 28 along the guideway 24 and carrying a four armed spider 30 which is slidable by hydraulic means 32 along an axis which is transverse to the direction of movement of the transfer carriage 26 and indexable by 90 degree movements about the axis, each arm of the spider being provided with workpiece gripping means 34. The apparatus is usable in conjunction with workpiece feed and discharge chutes 36, 38 whereby workpieces are received by the transfer carriage and spider 4 supplied to the work spindle 12 of the lathe and subsequently removed from the spindles 12 and transported to the discharge chute. There are two series of operation of the apparatus described. In the first sequence of operation there is included a workpiece turning device 42 for turning the workpiece end to end when part of the machining cycle. In this sequence a workpiece received from the feed chute 36 is transported by the spider 30 to a first lathe spindle, from the spindle to the turning device, from the turning device to the second spindle and ultimately from the second spindle to the discharge shoot at the completion of the machining cycle. Of course the spider having four gripping means, permits the simultaneous transferring and successive machining of four workpieces with the corresponding moving and indexing of the spider according to the desired machine cycle. In the second sequence of operation in which the workpiece inverting operation is omitted two workpieces are simultaneously received from the feed shoot, transferred to the spindles 12, removed from the spindles the transfer spider being indexed to receive two more workpieces and then indexed to present the two finished workpieces to the discharge shoot. Pairs of workpieces are simultaneously received, machined and discharged in this sequence. A pivotable channel 48 is provided between the feed and discharge shoots to permit the feed and discharge of pairs of workpiece.
Patent GB-1362505-A (GB)
Title: Circuit arrangement for an ultrasonic cleaning apparatus
IPC: H03B5/30
Filed: 1972-11-07
Abstract: 1362505 Transistor oscillators BRANSON INSTRUMENTS Inc 7 Nov 1972 [11 Nov 1971] 51209/72 Heading H3T A circuit for use in an ultrasonic cleaning apparatus comprises a pair of transistors 44, 46 connected in series across D.C. source terminals 40, 42, an oscillatory circuit including the series connection of a first inductor 50, a capacitor 52, the primary winding 54 of a feedback transformer and the parallel connected combination of a further capacitor 60 and a second inductor 58, an inductor 62 connected across the primary winding 54 for rendering the signals applied via feedstock windings 64, 66 to lead in phase the currents through transistors 44, 46 as to cause one transistor to be rendered non-conductive before the other is rendered conductive, bias arrangements 70, 72 connected between the feedback windings 64, 66 and transistors 44, 46 which add or subtract with the feedback signal depending on whether the transistor is non- conducting or conducting. The circuit is arranged to operate at the mechanical resonance frequency of transducers 20 connected to the oscillatory circuit.
Patent GB-1443636-A (GB)
Title: Ac electrical supply arrangment
IPC: H02P5/74
Filed: 1974-11-26
Abstract: 1443636 Control of A.C. motors SIEMENS AG 26 Nov 1974 [28 Nov 1973] 51254/74 Heading H2J An A.C. electrical supply arrangement for supplying a plurality of A.C. motors comprises at least two inverters having inputs connected in parallel to a common D.C. supply and means to control the inverters so that, with the inverters supplying respective sets of motors, the frequency of the A.C. produced by the inverters will oscillate about a mean frequency and the frequencies of the inverters will oscillate with phase difference from one inverter to another in such manner as to feed back active power from motors which are decreasing in speed at an instant in time and use the fed-back power as driving power for the other inverter of inverters feeding active power to accelerate motors at said instant in time. In Figure 1 two groups of asynchronous motors 6, 7 provide drives for traversing devices each comprising a member 9 guiding a filament 10 of a synthetic fibre machine along a filament take up reel 8 in either direction, the frequency of the motors oscillating about a mean frequency to produce alternate periods of power absorption from and power regeneration to inverters 2, 3 associated with the respective groups and supplied from a common rectifier 1 whose output voltage is regulated by a controller 21. The frequency oscillation is produced by a triangular waveform signal generator 20 which varies the frequency of the inverters 2, 3 through respective control circuits including pulse distributors 12, 15, voltage/frequency converters 13, 14 and amplifiers 16, 17 also receiving a D.C. voltage from member 18. An inverting amplifier 19 is interposed between members 17, 20 to displace by 180 degrees the frequencies F2, F3 of the inverters 2, 3, whereby periods (a) and (b) of respective increasing and decreasing frequency of the inverter 3, Fig. 2 (not shown), correspond to respective periods of decreasing and increasing frequency of the inverter 2. Thus power fed back to one inverter 2, 3 by one group of motors 6, 7 during periods of frequency decrease is used by the other inverter during its periods of frequency increase when power is being supplied to the other group of motors, the rectifier 1 consequently being designed to cover only the energy losses in the inverters and motors.
Patent GB-1404996-A (GB)
Title: Transistor
IPC: H01L29/737
Filed: 1972-11-07
Abstract: 1404996 Semi-conductor devices INTERNATIONAL BUSINESS MACHINES CORP 7 Nov 1972 [20 Dec 1971] 51290/72 Heading H1K A transistor including an N<SP>+</SP>type -subcollector layer 1, an epitaxial N-type collector layer 2 and a low resistivity, high minority carrier mobility P<SP>+</SP>-type epitaxial base layer 3, all these layers being formed of the same III-V compound such as GaAs, has an epitaxial N- type emitter layer 4 of a III-V material, e.g. Ga 1-x Al x As (0À37>x>0À9), having a higher energy bandgap than the first material so as to form a heterojunction therewith favourable to efficient minority carrier injection. Doping levels are stipulated for each layer. The material of the layer 4 forms a good lattice and thermal expansion coeffcient match with the first material, but is preferentially etchable with respect thereto so as to facilitate etching of the layer 4 into the undercut mesa shape shown. The mask for this etching process may be photo-resist but preferably comprises an Au- Ge layer 6 forming the ohmic emitter contact. The undercutting of the layer 4 allows the base contact 7, e.g. Au-Ge, Au-Zn, Au-Sn or Sn, to be evaporated on without the need for further masking while leaving a gap 8 to prevent shorting to the emitter layer 4. The collector contact 5 is of the same material as the contact 7. Sn or Te are referred to as dopants for the layers 2 and 4, Ge being employed in the layer 2. Liquid phase epitaxy is used to deposit layers 2-4.
Patent GB-1235519-A (GB)
Title: Control of a process variable with the aid of a computer
IPC: G06F19/00
Filed: 1968-10-30
Abstract: 1,235,519. Automatic control. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Oct.30, 1968 [Nov. 1, 1967], No.51468/68. Heading G3R. A signal corresponding to the magnitude of a process variable is applied to a digital computer which calculates any necessary correction of that variable and applies a corresponding signal, intermittently through an amplifier having capacitive feedback, to correct the variable, a signal corresponding to the magnitude of the variable also being applied through an impedance to the amplifier during the intervals between corrections by the computer. In Fig.1, a D.C. signal dependent on a variable of a process 1 is produced by a measuring device 5 and applied to a digital computer 6 which calculates any necessary correction of the variable, e.g. by comparing its magnitude with a desired value, and periodically operates a relay 10, 8 so that a condenser 9 is alternately charged to the correction voltage and connected to an operational amplifier 4 having capacitive feedback the output of which operates a device 2 correcting the process variable. The signal from measuring device 5 is also applied through an impedance 7 to amplifier 4 so as to anticipate changes in the correcting voltage from computer 6 in the intervals before such changes become effective. Network 7 which blocks the D.C. component, includes capacity and is chosen to provide optimum anticipation. In proportional plus integral control, the proportional component may be provided through impedance 7 and the integral component through computer 6. If the computer fails or is rendered ineffective by automatic or manual operation of a switch 11, the signal applied through impedance 7 provides emergency control. Overriding manual control of the variable may be produced by operation of switches 12 and 13 to apply signals of appropriate polarity to amplifier 4. In a modification, impedance 7 is disconnected from amplifier 4 and a feedback resistor connected to amplifier 4 each time the signal from computer 6 is applied directly to amplifier 4.
Patent GB-1371604-A (GB)
Title: Thermal converters
IPC: G01R5/22
Filed: 1971-10-27
Abstract: 1371604 Comparing amplitudes of electric signals ORMANDY & STOLLERY Ltd 27 Oct 1971 [29 Oct 1970] 51470/70 Heading G1U Two signals which should bear a required ratio to one another are compared by measuring (24) the difference between the outputs of two thermal converters 11, 12 to which the respective signals are applied, the thermal converters having the same current ratings but the heater 18 of the one for receiving the larger of the two signals being paralleled by a shunt 23 so as to introduce the appropriate scaling factor. The shunt 23 is made of the same material as the heater 18 and is enclosed in a separate evacuated envelope 25, thus minimizing errors due to temperature-dependant changes in resistance as the signal varies.